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91
Total
100
DNS
90
Email
77
Security
85
Network
100
Availability
Domainuni-bremen.de
IPv41
IPv61
MX records1
StatusActive
Domain technical report

Startseite - Universität Bremen

uni-bremen.de

Die Universität Bremen ist mit rund 20.000 Studierenden eine mittelgroße deutsche Universität. Für engagierte und talentierte Studierende bietet Bremen ein breites Fächerangebot: gut 100 Masterstudiengänge und Bachelorprogramme sowie das juristische Staatsexamen. Und mit dem Forschenden Lernen hat die Universität das Projektstudium, eine Besonderheit aus ihren Gründerzeiten, neu interpretiert. 2012 wurde Bremen mit dem Zukunftskonzept „Ambitioniert und agil“ als eine von elf Universitäten als Exzellenzuniversität ausgezeichnet.

Generated: 2026-08-09T05:48:01-05:00 · Cached result

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IPv41
IPv61
MX1
NS3

DiagnosticsMain findings and recommendations

✓
IPv4 (A)30 / 30 pts · Dns

1 IPv4 address(es) detected.

✓
IPv6 (AAAA)10 / 10 pts · Dns

1 IPv6 address(es) detected.

✓
Name server redundancy20 / 20 pts · Dns

3 NS record(s); 2 or more required.

✓
SOA record10 / 10 pts · Dns

Authoritative zone record.

✓
DNSSEC chain15 / 15 pts · Dns

DS and DNSKEY detected.

✓
CAA policy5 / 5 pts · Dns

Certificate authority restriction.

✓
DNS propagation10 / 10 pts · Dns

Agreement between public resolvers.

✓
MX records20 / 20 pts · Mail

1 MX record(s).

✓
SPF25 / 25 pts · Mail

SPF policy published.

✓
DMARC25 / 25 pts · Mail

DMARC policy published.

✓
DKIM20 / 20 pts · Mail

A DKIM selector was verified.

!
MTA-STS0 / 5 pts · Mail

Mail transport policy.

!
TLS-RPT0 / 5 pts · Mail

TLS reporting policy.

✓
Valid TLS certificate55 / 55 pts · Security

190 day(s) remaining.

✓
Certificate lifetime10 / 10 pts · Security

Full points require at least 30 days remaining.

i
HTTP security headers12 / 35 pts · Security

3 of 9 evaluated headers detected.

✓
PTR reverse DNS30 / 30 pts · Network

PTR: uni-bremen.de

i
IPv4 diversity20 / 35 pts · Network

Two or more IPv4 addresses receive full points.

✓
IPv6 connectivity35 / 35 pts · Network

AAAA availability.

✓
DNS resolution40 / 40 pts · Availability

At least one address family must resolve.

✓
HTTP response40 / 40 pts · Availability

HTTP/1.1 200 OK

✓
HTTPS final URL20 / 20 pts · Availability

Final URL uses HTTPS.

DNS and emailPublished records and email configuration

A

1 record(s)
134.102.22.124

AAAA

1 record(s)
2001:638:708:16::22:124

CNAME

0 record(s)
—

Not configured

MX

1 record(s)
10 mailgate.zfn.uni-bremen.de.

TXT

9 record(s)
"_telesec-domain-validation=342062_2025-10-30_iBR3iEre5Q4rBZHu4P54hgxq6GUBD4r9VQrylGxHWR63Kbcrud"
"cisco-ci-domain-verification=3a8a59fb2fba7134712d7ac41a382a678e7d28ef02f69cce25ba58e5e5e332c4"
"nitro-verification-code=Nzc1MTU4MjgxMTQ3NjE5MTc1Mw=="
"v=spf1 a mx ip4:134.102.50.0/24 ip6:2001:638:708:32::/64 ip4:134.102.51.0/24 ip4:134.102.58.0/24 ip4:134.102.3.75 ip4:134.102.236.10 ip4:134.102.196.32 ip4:134.102.20.0/24 ip4:134.102.22.0/23 ip4:134.102.231.91 include:_spf.zimpel.de ~all"
"google-site-verification=uADf_FvqD49vqW1R7ZpDJVjm1LuOkCt4oHGGfv8oAhE"
"ms=644922E0CDD80E313DAF6BAC6974F8BD19938702"
"google-site-verification=BqjtWc7qOcV2hSUUwPTIja-PFBVVctvEsskJo4S8RrM"
"HARICA-gaXa3ISBZAriIptMjvp"
"google-site-verification=b6v9hpU4xxZKeTqeb1JuIn8T1QS2Jjkrj07pVCB1aBk"

NS

3 record(s)
ns.informatik.uni-bremen.de.
ines.zfn.uni-bremen.de.
dns-2.dfn.de.

SOA

1 record(s)
ines.zfn.uni-bremen.de. helms.zfn.uni-bremen.de. 2029828344 28800 7200 1209600 700

CAA

5 record(s)
0 issue "harica.gr"
0 issuewild "harica.gr"
0 issue "telesec.de"
0 issue "pki.dfn.de"
0 iodef "mailto:campusserver@uni-bremen.de "

DS

1 record(s)
18877 8 2 CA9990131EF2ECB41D7675B888C28373621FAC197440A74461B194F5 30F2AFED

DNSKEY

2 record(s)
257 3 8 AwEAAaMYKgMvfIgbCfx0aIdVDl2w9CRsahXzjsC7oz00mgVFxncR/zgK qiy8U7pAZCpgosOaL2a1xOOjYrpbsJmlw5H1nGisQCOZsXlJpAmfRA3F 6dbyu2dZ0aADFrFrpjbF1qnuK26Y+AiFg/FxBR4jIctgs4rsmmAFo2sc nGVOZwG0UFBut/0H7hErYal1S0cIFEuIjPnJZQUzkD73nfSJ9AL64anI uc4g/8Hz9GHxsNkBdKt6VmkeV8swHyEGIb3S+23L4Lp9oEg8bMkRibIX Pr/iqSQCh/VxGM6KTLDoJSIDMeBhi0peeldg1W44oF4PsXJPQZ1V9DGz TqoPoMBiuQk=
256 3 8 AwEAAbTmXRRDwzPmxmG79SWhpcq2wvS/ybWo1QE+l4eDN3e1billXIFW uu/YE4JRs+2+NDYjQ04kmEf5fbJ/1/dT8wtTuAxnUrcN8tSEzwbwWYYi 185VrjNoTqatOEeu4jx1+7yJK+TO/e5s8b+YRMlYW93yUkvMdj58BHAX Y4E/WpF7

RRSIG

5 record(s)
NS 8 2 700 20260905084041 20260806074336 15315 uni-bremen.de. Puy5NKCKn5zW0D+y5wctyJL68TdIPRl4Ck8kGa/oBNjV9vE/8qUm3C5U +uLG1td5Qo8+rt/1TmAv73qhsA/6iX0tUoLMgigm9BGXa7WOY2SN35VL Ru3AwEb5FvKJ/BoTpll+n+Ljts1JnWeMJnfIfKXExonGh23e63Nd0jBn zWU=
A 8 2 700 20260905084041 20260806074336 15315 uni-bremen.de. snd8QiyuM/x8m+vdKSjg2UmB1dNcq/ik1WsgxRt3QXkLj2RWpIzdNNo1 Jl+OI/mbJi9UUXrRmY66M51bAruYHrWkL+lxJ9hsjQ7UnCd5zHiZHQ8O 9X4C9Ct5Kj7GJknzBzGk+eJPE8hbmDhK11mRyIxLlU00nTv0ePUxYME/ yaw=
MX 8 2 700 20260905084041 20260806074336 15315 uni-bremen.de. oDdQfE5sca00QN7fq9GlcnLU0aeJ2vGs8hIfav/DMDjQtNu8PwRVbQV6 2RDdFxAYZ13caW8s+HaSBFNfMll5aYVmuzLSy/mZVZVxgn7mlpcgGW4/ ms/cbyCDiimixFCqymVHQE6g5y1FAL63Q8/twZw6Bg9bw2BBAMOqGHuH ppE=
DS 8 2 86400 20260817120903 20260803103903 32911 de. q0ynUseyN9qySiIJCTbRw0aMvuC2x0tNK4m6PCVvBSjNw1W9fIBv6byo r1a80oZ7/1Fx0dcDBhuLUR3gEvS3UI8iQowKiPmVlYrVa6ofJsGh/JXF txw6EwZaWLqiV/NoKBwb4w5g34GmUUVSr2AEJXRcmWC7LOd7TTTU1azy eug=
CAA 8 2 700 20260905084041 20260806074336 15315 uni-bremen.de. nZYtNLIo6KXcf5GCD5plEP1BJr2dvNR6RyoVlRB3yWka9J+svXWjewqR hQwzpmHHmhWI4hY0M2X7h7rUu6mZdzArnZa3nBrApbrNq42VpXEsEIBD K+CQWQNvdjDJe2PC2kbN6luiT0hxTYIYWCJev9B0REhm6GVQeb3/IRkI 9ek=

NSEC

1 record(s)
_dmarc.uni-bremen.de. A NS SOA MX TXT AAAA NAPTR RRSIG NSEC DNSKEY CAA TYPE65534

NSEC3

0 record(s)
—

Not configured

SRV

0 record(s)
—

Not configured

NAPTR

1 record(s)
100 10 "s" "x-eduroam:radius.tls" "" _radsec._tcp.eduroam.de.

TLSA

0 record(s)
—

Not configured

SSHFP

0 record(s)
—

Not configured

SPF

Configured
v=spf1 a mx ip4:134.102.50.0/24 ip6:2001:638:708:32::/64 ip4:134.102.51.0/24 ip4:134.102.58.0/24 ip4:134.102.3.75 ip4:134.102.236.10 ip4:134.102.196.32 ip4:134.102.20.0/24 ip4:134.102.22.0/23 ip4:134.102.231.91 include:_spf.zimpel.de ~all

DMARC

Configured
v=DMARC1; p=none; rua=mailto:unihb@uni-bremen.de; adkim=r; aspf=r; sp=none

DKIM

Selector dkim
v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDgBU0ghGdfyIUvtAfnPsH5F8ApMS4poKnTS25wrLWL+GubZy+eY0tRGKDqEs5/64ZLPugKcW7mUnOjllRZrZ3B+vweQZ5e3y/vFOTu37i4ACyACRcwFy3ouOFA94dpBpjcdIY1jtcv7BPAQ8w5jaXPz+C2AMPDGQ/ifevS0K4QnQIDAQAB

Analyzed webpageMetadata and HTTP response

Title and description

Extracted
Title
Startseite - Universität Bremen
Description
Die Universität Bremen ist mit rund 20.000 Studierenden eine mittelgroße deutsche Universität. Für engagierte und talentierte Studierende bietet Bremen ein breites Fächerangebot: gut 100 Masterstudiengänge und Bachelorprogramme sowie das juristische Staatsexamen. Und mit dem Forschenden Lernen hat die Universität das Projektstudium, eine Besonderheit aus ihren Gründerzeiten, neu interpretiert. 2012 wurde Bremen mit dem Zukunftskonzept „Ambitioniert und agil“ als eine von elf Universitäten als Exzellenzuniversität ausgezeichnet.
Final URL
https://www.uni-bremen.de/
HTTP status
206

HTTP

Status
HTTP/1.1 200 OK
Final URL
https://www.uni-bremen.de/
Version
2
Server
This is not the server you are looking for!
X-Powered-By

SSL and HTTP securityCertificate, protocol and security headers

SSL certificate

Available
Available
Yes
Issuer
Hellenic Academic and Research Institutions CA
CN
uni-bremen.de
Valid from
2026-07-31T08:16:02-05:00
Valid until
2027-02-15T07:16:01-06:00
Days remaining
190
Protocol
TLSv1.3
Cipher
TLS_AES_256_GCM_SHA384

Security headers

3 active
✓
HSTSImplemented
—
Content Security PolicyNot detected
✓
X-Content-Type-OptionsImplemented
✓
X-Frame-OptionsImplemented
—
Referrer PolicyNot detected
—
Permissions PolicyNot detected
—
Cross-Origin-Opener-PolicyNot detected
—
Cross-Origin-Embedder-PolicyNot detected
—
Cross-Origin-Resource-PolicyNot detected

DNS propagationComparison across public resolvers

Public resolver comparison

Consistent
✓
Consistent propagation

5 public resolvers queried.

ResolverServerResultLatency
Google
8.8.8.8
134.102.22.124
183,81 ms
Cloudflare
1.1.1.1
134.102.22.124
279,60 ms
Quad9
9.9.9.9
134.102.22.124
215,20 ms
OpenDNS
208.67.222.222
134.102.22.124
137,82 ms
AdGuard
94.140.14.14
134.102.22.124
67,98 ms

IP, geolocation and ASNAssociated network information

134.102.22.124

No data
success
No
country
region
city
asn
organization
isp

Visitor information

Visitor
ip
216.73.217.62
reverse
country
country_code
region
city
latitude
longitude
isp
organization
asn
timezone
browser
Other
os
Other
language
user_agent
Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)
is_bot
Yes
cloudflare
No

SMTPEmail port connectivity

mailgate.zfn.uni-bremen.de

Port 25: Closed/unreachable - 125.4 ms - 
Port 465: Closed/unreachable - 244.7 ms - 
Port 587: Closed/unreachable - 122.1 ms -

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